Typewriting machine



1931. G. G. some TYPEWRITING MACHINE Filed Sept. 30. 1929 2 Sheets-Sheet IIIIIIIIIIIIIII v: I al lrlraz w rill la 9 1%. 4 BYGBMWMM WITNESSES Aug. 4, 1931. 5. G. some 1,817,254

TYPEWRITING MACHINE Filed Sept. 30. 1929 2 Sheets-Sheet 2 WITNESSES 4 INVENTOR ATTORNEY Patented Aug. 4, 1931 UNITEDSTATES PATENT OFFICE GEORGE G. GOING, OF GLENBRO OK, CONNECTICUT, ASSIGNOR TO REMINGTON TYPE- WRITEB COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK TYPE'WRITING MAGHINE Application filed September 30, 1929. Serial'Ro. 396,156.

My invention relates to typewriting and likemachines and more particularly to the type actions thereof. 1

The main object of my invention, generally stated, is to provide a comparatively simple, rapid, highly efiicient an'd' substantially' noiseless, pressure imprint, type action of the pivoted type bar variety.

Another object of my invention is to prom vide a type action of the character specified that will enable therequisite number of type actions to be included in a single shift standard ke board machine that may be manufactured at comparatively small cost. I

' A still further object of my invention is to provide a type action, or systemof type actions that may be embodied in a small sized portable typewriter, but that also may be em loyed m non-portable standard machines 'i desired. To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements forth in the following description and particularly pointed out in theappended claims. In the accompanying drawings wherein like reference characters designate corresponding parts in the different views- Fig.- 1 1s a fragmentary, fore and .aft,

vertical, central sectional view of a machine equipped with one of the central type actions of my invention.

'Fig. 2 is a side view of parts of one of the type actions in the actuated position.

Fig. 3 shows in perspective and detached, a group of the parts which constitute the controllin means for effecting a pressure imprint o a ty e-bar.

ig. 4 is a ragmentary top plan view of the machine showing a number of the type actions of the system.

have shown my invention,-in the present instance embodied in a portable typewriting machine similar in some respects to that disclosed in an application filed by me Jan. 10, 1929, Serial No. 331,534.

In the accompanying drawings I have shown only so much of a typewriting maof parts and combinations of devices set" chine as is necessary to arrive at an understanding of my invention in its embodiment therein. The frame 1 of the machine may be of any suitable construction and supports a horizontally disposed type bar 4 segment 2. This segment is slotted at '3 to receive type bars 4 which work in said slots and are pivoted therein on an are shaped pivot wire 5 carried by the segment and disposed in a'horizo'ntal plane and at right angles to a vertical lane tangent to the platen 6 at the printing line. Each type bar, as shown in the present instance, is pivoted near its lower end to swing in an arc of approximately the type swinging approximately two and three quarter inches to the printing point. Each type bar is straight or devoid of lateral bends throughout its length and carries at its free end a type block-7 with a lower case type 8 and an up er case type 9. The type bars are arranged in a segmental group around the printing face of the platen with the ty e faces of the side bars inclined to match t e surface of the platen as the contact therewith, like the end thrust type bars of the No. 6 Remington Noiseless machine. Provision is made for the employment of fortyfour type bars with a platen having a single case shift for the writing of eighty-four characters.

Any suitable key operated actuating means may be employed to directly coact with the type bar and effect anoperation thereof. The actuating means shown in the present instance are similar to those disclosed in my application hereinbefore referred to and will now be briefly described.

The printing key levers 10 are pivoted at 11 and-are provided with fin er keys 12 arranged in four banks of a standard key board. Each key lever cooperates with a looped strap 13 in which the key lever is seated in such a manner asto permit a continued' downward movement of the strap after the companion key lever is arrested in its actuating movement by a padded stop 14. The key levers 10-for the different banks of keys are of different lengths and consequently have contact edges 15 which are higher or lower depending on the length of the key lever of which the contact is made a part. This provides a uniform dip of the different keys.

Each strap 13 is pivoted at its upperend, as at 16, to a sub-lever 17 pivoted at 18 to a hanger 19. The hangers are detachably secured to a supporting plate 20 attached to the segment 2. The fore and aft posi tions of the .difierent hangers 19 vary ac.- cording to the length of the ke lever associated therewith, so as to e ect corresponding variations in'the position of the strap 13, thus providing a uniform leverage for the varioustype actions throughout the system.-

Each sub-lever 17 is pivoted at 21 to a slide 22 received at its rear end in a slot 3 in the t pe bar segment where it is supported or sliding movement in the same radial planethat the companion .type bar moves in. The rear end portion. of each slide 22 is provided with upwardly directed teeth 23 that .mesh with teeth 23? on the heel of the associated type bar.

The construction as thus far describedis. substantiallythe same as that disclosed in my pending application hereinbefore described.

The controlling means of my present invention, whereby a substantially noiseless, pressure imprint, is effected from each type bar, will now be described.

A toggle comprising links 24 and 25, WhlCh are pivotally united at 26, is provided for each type bar. In the present instance each link 24 is in the nature of a double link consisting of two members arranged in parallelism and maintained spaced apart. The forward end of each of the links 24 and the toggle of which it forms a part is pivoted at 27 to the companion type bar near the outer or type bearigig end thereof, where the t0 gle is most e e'ctive. The opposite end of pivot wire 28.carried by a slotted segment 28 on the frame 1 of the machine. Each member of the link 24 has an arm 29 between which arms is received the reduced end 30 of a member designated as a whole by the reference vnumeral 31. The reduced end of this member is pivoted at 32 to and between the arms 29 ofthe links '24, whereas the body portion of the member 31 is pivoted at 33.

to and between the separated ends of two members of a double link 34 which in effect constitute a single link. Each member of a double link 34 has an inward off-set portion 35 pivoted at 36 to and on one side of a depending projection 37 on the companion single toggle link 25. One of the oft set portions 35, where it extends beyond its pivot 36, constitutes a stop that is adapted to coact with a sto 38 formed as a laterally prqectmg ear on t e portion 37 of the comthe toggle 24-25 is anchored on aconstitutes a so-called momentum accumulator, for purposes which will hereinafter more clearly appear. 7

I provide suitable means for arresting each type bar in its return to normal position; In the present instance this result is effected by providing a padded stop 40 carried by the frame of the machine and against which each member 39 is arrested in.its return movement, thereby arresting.-

all of the parts of the companion type action connected therewith.

From what .has been pointed out it will be understood that the links 34 of each type action, together with the associated arm of,

the member 31 intermediate its pivots 32 and 33, constitute a second so-called floating toggle. This toggle reaches substantially a straight line condition parallel with the toggle 2 14-25 when an imprint-is effected and the pivots 33, 32 and 36 are substantially in a straight line condition, as shown in full lines in Fig. 2. This second floating toggle, in moving to the strai ht line condition near the last portion 0 the printing stroke of the type bar, and through the action and momentum accumulator thereon, tends to straighten the first toggle 24-25 and reduce the speed of the type bar and apply a substantially noiseless pressureim print, as distinguished from animpact or hammer blow.

It also will be seen that some of the elea said to form one element of a toggle, the

other element, of which is the associated member 31 between its pivots 32 and 33 thereof. From an inspection of Fig. 2 it will be seen that asthe pivots 26, 32 and 33 approach a straight line position, as indicated in dotted lines in said figure, a force is exerted by said toggle to straighten the toggle 24-25, the'momentum accumulator,

such toggles. p

From a consideration of Fig. 4 itwill be seen that the controlling elements of each type'bar, as well as the actuating elements 17 and 22 therefor, operate in the same radial plane as the associated bar, whereas at this time acting to straighten both of the keylevers are indicated, in the present instance, as operating in vertical parallel planes that extend fore and aft of the machine. Nevertheless, there is no side strain in any of the actions, since each sub-lever 17 is connected (by its depending strap 13) with the companlon key lever 10 at the planes where the two intersect. Each strap.

directly to the'companion type bar. As the latter 1s actuated it will set in motion and actuate the connected controlling devices. This will c'ontinue until the key lever is arrested by the stop 14, which is at about the time the type bar and its controlling devices reach the dotted line positions shown in Fig. 2. The lost motion connection between the actuated key lever and its strap 13 enables the further slight movement of the type bar to the printin position to take place; The momentum o the type bar and the parts of the controlling means connected therewith, more especially the momentum accumulator 39, will continue the motion of the parts, except the key lever, and straighten the toggles from the dotted to the full line position shown in Fig. 2. This straightening of the toggles results in slowin down the motion of the type bar 7 and e ecting a pressure imprint substantially free from noise.

A returning-spring 41, the stops 35 and 38 and the weightof the momentum accumulator, the toggle links 24 and 25 and the parts carried thereby aid in effecting a quick return of the type bar to normal position.

It will be seen that the controlling devices, although including a plurality of toggles, have but a single point of anchorage, at 28, and that in the movement of such' controlling devices from the normal Fig. 1 position, they move with the type bar in the same general direction as the latter in its movement to printing position and do not materially retard the type bar during a considerable 1 portion of its movement from a position of rest. This'results in the provision of a light and rapid action that provides a snappy and easy touch. As a further contributing factor to the attainment of these ends it will be seen that during most of the movement of the type bar from the normal to the printing position, the momentum accumulator 39 operates with the force of gravity and that it is not until the type bar has been slowed up and is close to the platen that said member 39 operates against the low the top ends of the type bars and to be located wholly in front thereof where they occupy only a small space and add nothing to either the height or required fore and aft dimensions of the machine, as well as lending themselves to the other provisions and advantages hereinbefore pointed out.

Moreover, this arrangement lends itself to the mounting of each of the toggles 2425 in a position where it may be connected to its type bar directl infront of a type thereon and exerts its orce on the type bar in a straight line passing through the anchorage 28, the point 27 of its connection with th'e type bar, the type, the printing point and the pivotal axis of the platen, a very desirableconsideration and one whichmakes for the attainment of the most effective results. i Various changes may be made in the construction, and some of the features thereof may be employed without others, without departing from my invention as it is defined in the accompanying claims.

What I claim'as new and desire to secure by Letters Patent, is:

1. The combination of a pivoted type bar, and controlling means connected to said type bar for controlling it to effect a substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed part of the machine and connected at the other end directly to the type bar, and a second pair ofpivotally united links constituting a floating second toggle connected at one end to one of the first mentioned links and at its other end to the other of said first mentioned links, the links of both toggles being substantially straightened at the time the imprint is efiected.

2. The combination of a pivoted type bar, and controlling means connected to said type bar for controlling it to effecta substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constitutmg a toggle anchored at one end to a fixed part of the machine and connected at the other end directly to the type bar, and a second pair of pivotally united links constituting a floating second toggle connected at one end to one of the first mentioned links and at its other end to the other of 3. The combination of-a pivoted type bar, and controlling means connected 'to said type bar for controlling it to efiect a substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed part of the machine and connected at the other enddire'ctly to the type bar, and a second pair of pivotally united links constituting a floating second toggle connected at one end to one of the firstmen'tioried links and at its other end tothe other of said first mentioned links, the links of both toggles being substantially straightened at the time the imprint is effected, and a Weighted member constituting a momentum accumulator connected to one of said links of the I floating toggle.

4. The combination of a pivoted 'type bar, and controlling means connected to said type bar for controlling it to effect a substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed part of the machine substantially in a horizontal plane passing through the printing pointand connected at the other end directly to the type bar close to the free end thereof stantially noiseless pressure imprint there-' from, said-controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed part of the machine and connected atthe other end directly to the type bar, and a second pair of pivotally united links constituting a floating second toggle connected at one end to one of the first mentioned links and at its other end to the other of said first mentioned links, the links of both toggles being substantially straightened at the time the imprint is effected, and coacting stop members on certain ofsaid' links, which stops coact to prevent an overthrow of both of said toggles beyond a straight line position. I

6. The combination of a pivoted type bar,- and controlling meansicomiected to said type bar for controlling it to efi'ect a sub stantially noiseless pressurehimp rint therefrom, said controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed,

part of the machine and connected at the other end directly to the type bar, and a second pair' of pivotally united links co'nstituting a floating second toggle connected at one end to one of the first mentioned links and at its other end to the other of said first mentioned links, the links of both toggles being substantially straightened at the time the "imprint is effected, both of said toggles being underslung below the top of the type bar and arranged in front thereof.

7. The combination of a pivoted type bar,

key actuated means connected directly to a substantially noiseless pressure imprint therefrom, said controlling means compris ing a pair of pivotally connected links constituting a toggle anchored at one end to a fixed part of the machine and connected at the other enddirectly to the type bar, and a second pair of pivotally united links constituting floating second to gle connected at one end to one of the first mentioned links and at its other end to the other of said first mentioned links, the links of both toggles being substantially straightened at thetime the imprint is efi'ected.

8; The combination of a pivoted type bar, key actuated means connected directly -to the type bar for operating it and controlling means connected to' and actuated by said type bar for controllingit to e'fi'ect a substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed part of the machine and connected at the other end directly to the type bar and having an extended arm, and a second pair of pivotally united links constituting a floating second toggle connected at one end to said arm and at the other end to the other of said first mentioned links.

9; The combination of a piovted type bar, key, actuated means connected directly to the type bar for operating it, and control-- ling means connected to and actuated by said type bar for controlling it to effect a substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constitutlng a toggle anchored at one end to a fixed part of the machine and connected at the other end directly to the type bar and having an extended arm, a second pair of pivotally united links constituting a floating sec- 0nd toggle connected at one end to said arm and at the other end to the other of "saidfirst mentioned links, and a weighted bar, and controlling means connected to said type bar for controlling it to effect a substantially noiseless pressure imprint therefrom, said controlling means comprising a 5 pair of pivotally connected links constituting a toggle anchored at one end to a fixed part of the machine and connected at the other end directly to the type bar, and a second pair of pivotallyunited links constituting a floating second toggle connected at one end to one of the first mentioned links and at its other end to theother of said first mentioned links, the links of both toggles being substantially straightened at the time the imprint is efi'ected and moving from normal position in the general direction of movement of the type bar to printing position 11. The combination of a pivoted type bar, key actuated means connected directly to the type bar for operating it, and controlling means, connected to and actuated by said type bar forcontrolling it to eilect a substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed part of the machine and connected at the other end directly to the type bar,

L and a second pair of pivotally united links supported wholly by said first mentioned toggle and constituting a floating second toggle with each link thereof pivoted to one of the links of the first toggle, both toggles being substantially parallel when straightened.

12. The combination of a pivoted'type bar, key actuated means connected directly to the type bar for operating it, and con- 0 trolling means connected to and actuated by said type bar for controlling it to effect a substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed part ofthe machine and connected at the other end directly to the type bar, a second pair of pivotally united links supported wholly by said first mentioned togc gle and constituting a floating second toggle with each link thereof pivoted to one of the links of the first toggle, both toggles being substantially parallel when straightened, and a weighted arm on one of the links of said floating toggle, said weighted arm constituting a momentum accumulator that aids in completing the movement of the type bar to printing position.

13. The combination of a pivoted type bar, a printing key, actuating means controlled thereby and connected directly to the type bar for actuating it, a stop for arresting the printing key before the type bar reaches the printing point, and controlling means 5 connected to said type bar for controlling it to eifect a substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed part of the machine and con-- nected at the other end directly to the type bar, a second pair of pivotally united links constituting a floating second toggle connected at one end to one of the first men tioned links and at its other end to the other of said first mentioned links, the links of both toggles being substantially straight ened at the time the imprint is effected, and a weighted member constituting a momentum accumulator connected to one of said links and which aids in completing the movement of the type bar to printing position after the printing key has been arrested.

14. The combination of a pivoted type bar, a printing key, actuating means controlled thereby and connected directly to the type bar for actuating it, a stop for arrest ing the printing key before the type bar reaches the printing point, and controlling means connected to and actuated by said type bar for controlling it to eii ect a substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed part of the machine and connected at the other end directly to the type bar near the free end thereof, a second pair of pivotally united links supported Wholly by said first mentioned toggle and constituting a floating second toggle with each link thereoi pivoted to one of said links of the first toggle, and a Weighted member connected to one of said toggle links and constituting a momentum accumulator that aids in completing the movement of the type bar to the printing point after arrested.

15. The combination of a pivoted type bar, and controlling means connected to said type bar for controlling it to eifect a substantially noiseless pressure imprint there from, said controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed r part of the machine and connected at the other end directly to the type bar, and a second pair of pivotally united links constituting a floating second toggle connected with and supported wholly by the links of the first mentioned toggle, one of the elements of said second toggle being combined with one of the links of the first toggle to constitute a floating third toggle.

16. The combination or a pivoted type bar, and controlling means connected to said type bar for controlling it to effect a substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constitutltd ing a toggle anchored at one end to a fixed part of the, machine and connected at the other end directly to the type bar, and a second pair of pivotally united links con- 5 stituting a floating second toggle connected with and supported wholly by the links of the first mentioned toggle, one of the elements of said second toggle being combined 7 with cone of the links of the first toggle to 1 constitute a oating third toggle to one of the elements of Which a Weighted member or momentum accumulator is connected.

17. The combination of a pivoted type bar, a printing key, actuating means con- 1 trolled thereby and connected directly to the type bar for actuating it, a stop for arresting the printing key before the type bar reaches the printing point, and controlling means connected to and actuated by said type bar for controlling it to efiect a substantially noiseless pressure imprint therefrom, said controlling means comprising a pair of pivotally connected links constituting a toggle anchored at one end to a fixed part of the machine and connected at the other end directly to the type bar near the free end thereof, and a pair of pivotally united floating links each pivoted to and carried by one of thelinksof said toggle, one of said floating links being extended to form a .'weighted member or momentum accumulator. g

Signed at Stamford, in the county of Fairfield and State of Connecticut this 28th day of September A. D. 1929. GEORGE G. GOING. 

